64 visiting now: 33 USA 
9 Singapore 
6 India 
6 Australia 
5 China 
4 UK 
2 Germany 
1 Finland 
1 Ukraine 
1 New Zealand 
1 Canada 
9 Singapore 6 India 6 Australia 5 China 4 UK 2 Germany 1 Finland 1 Ukraine 1 New Zealand 1 Canada